99Introduction; R.Leeson Archival Research and the Reconstruction of Piero Sraffa's Intellectual Biography: An Interim Report; N.Naldi The Collaboration between Keynes and Robertson during the Second World War: A Perspective from the National Archives; E.Sanfilippo Harrod's Discontent with Harrodian Growth Theory; D.Besomi Patinkin's Interpretation of Keynesian Economics: A Genetic Approach; G.Rubin Is ISLM a Static or Dynamic Keynesian Model?; W.Young The Post Keynesians' Assault on Orthodoxy; J.King The Cambridge Keynesians: Kahn, J. Robinson, and Kaldor: A Perspective from their Archives; M.C.Marcuzzo & A.RosselliThis volume examines the process by which Keynes' message got interpreted and re-interpreted and thus separated into a Left and a Right political-economic stream. Archival evidence is used to shed a fresh light on many of the controversies (and colourful characters) of the Keynesian tradition.